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Rioraja agassizii (MŘller and Henle, 1841)
RIO SKATE
Life   Vertebrata   Fish   Rajidae   Rioraja


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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Rioraja&speciesname=agassizii ---> http://192.134.151.83/Summary/speciesSummary.php?genusname=Rioraja&speciesname=agassizii
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https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Rioraja&speciesname=agassizii ---> https://fishbase.mnhn.fr/summary/Rioraja-agassizii.html
Rioraja agassizii, Rio skate
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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Rioraja agassizii ( M├╝ller & Henle , 1841 )

Rio skate Add your observation in Fish Watcher
Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Rioraja agassizii   AquaMaps   Data sources: GBIF OBIS
Upload your photos  and  videos
Pictures | Google image Image of Rioraja agassizii (Rio skate) Rioraja agassizii
Picture by Bornatowski, H.

Classification / Names Common names | Synonyms | Catalog of Fishes( genus , species ) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Rajiformes (Skates and rays) > Arhynchobatidae (Softnose skates)
Etymology: Rioraja: Latin, rivus = river (in Greek, rheo) + Latin, raja, -ae = ray, fish .
More on authors: M├╝ller & Henle .

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; demersal; depth range ? - 130 m (Ref. 26375 ). Subtropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Southwest Atlantic: Esp├şrito Santo, Brazil to Argentina.

Length at first maturity / Size / Weight / Age

Maturity: L m 42.5 , range 39 - 45.7 cm
Max length : 33.0 cm WD male/unsexed; (Ref. 26408 )

Biology     Glossary (e.g. epibenthic)

A coastal species found on sand, mud or gravel bottoms (Ref. 26375 ). Feeds on crustaceans, mollusks and fishes (Ref. 26375 ). Oviparous (Ref. 50449 ). Eggs have horn-like projections on the shell (Ref. 205 ).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449 ).

Main reference Upload your references | References | Coordinator : McEachran, John | Collaborators

McEachran, J.D. and K.A. Dunn , 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314 )

IUCN Red List Status (Ref. 130435 )

  Vulnerable (VU)  (A2bd); Date assessed: 01 July 2019

CITES

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource | Sea Around Us

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Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes : genus , species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome , nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go , Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201 ): 10.4 - 22.6, mean 14.8 °C (based on 300 cells). Phylogenetic diversity index (Ref. 82804 ):  PD 50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00490 (0.00309 - 0.00776), b=3.02 (2.89 - 3.15), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245 ). Trophic level (Ref. 69278 ):  3.6   ±0.0 se; based on diet studies. Generation time: 5.2 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. Resilience (Ref. 120179 ):  Low, minimum population doubling time 4.5 - 14 years (Assuming fecundity<100). Fishing Vulnerability (Ref. 59153 ):  Moderate to high vulnerability (54 of 100). Nutrients (Ref. 124155 ):  Calcium = 43 [7, 197] mg/100g; Iron = 0.911 [0.243, 2.649] mg/100g; Protein = 17.3 [14.6, 19.8] %; Omega3 = 0.522 [0.178, 1.883] g/100g; Selenium = 16.5 [4.9, 49.3] ╬╝g/100g; VitaminA = 16.8 [6.1, 46.1] ╬╝g/100g; Zinc = 0.769 [0.367, 1.401] mg/100g (wet weight);

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Updated: 2024-04-20 22:42:06 gmt
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